ECal Module Troubleshooting

There may be an error associated with the ECal USB driver if:

The PNA will not recognize the ECal module.
A test aborts with an error message the contains the text Call to MeasureECalModule on CalKit module failed.
There is a Check Connections message that says ECal module not connected to the system.

First try to restart the driver (see below for directions). If that does not work, then reboot the PNA instrument.

It is not recommended to unplug and plug the USB connection to the ECal. Sometimes it will correct the problem but there is risk of crashing the Windows OS.

Restarting the ECal USB Driver

To restart the ECal USB driver, perform the following steps on the UUT:

This procedure disables and re-enables a USB device driver. Follow these directions carefully so that the wrong driver is not disabled.
You must have administrator capability in order to manipulate device drivers. If you do not have administrative capability. then use the reboot option.

Minimize the PNA window: Select View, then Minimize Application.
Right click on the My Computer icon on the desktop, click Properties > Hardware > Device Manager.
Click the plus symbol (+) next to Universal Serial Bus Controllers, then click and hold on Keysight USB ECal Module.
Move the cursor over Disable and release the mouse button.
Allow enough time until the icon for the ECal module has changed. (The driver for the ECal device is now disabled.)
Click and hold on Keysight USB ECal Module again. Move the cursor over Enable and release the mouse button. The icon for the ECal module should change back to its normal appearance.

To reboot the PNA instrument, push and hold the PNA power button for about five seconds (until the screen goes blank).